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Air leak in Allison?
#11

Ok I found it. Thank all who responded. Clint put me on the path. There IS an air modulator after all. It was hidden behind a trans cooler hose. It is operated by an air signal provided by an air pressure regulator and a 12 volt air solenoid valve. The schematics I had found for an air modulator were all linked to an air operated accelerator pedal. My accelerator pedal is electronic. I also removed the "automatic" air supply tank water eliminator and routed a 1/4" air line into the rear fender well capped off by a manual ball valve. Thank you , Richard for that idea!! I have gone from the air compressor running every 30 minutes to..........well I don't know. I run out of patience after an hour!

1993 Newell (316) 45' 8V92,towing an Imperial open trailer or RnR custom built enclosed trailer. FMCA#232958 '67 Airstream Overlander 27' '67GTO,'76TransAm,'52Chevy panel, 2000 Corvette "Lingenfelter"modified, '23 Grand Cherokee.
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